Aiki Ryu Ju Jitsu Yondan Gi (Aiki #6) covers the requirements for Yondan (4th Degree Black Belt). An expansion of Aiki Ryu Goshin Waza, as well as Tactical Defense strategies are included. The vital priciples and philosophies of the Aiki Ryu Ju Jitsu system are presented in this curriculum. $49.95